code: def test_exception_spin2(electrons, orbitals, msg_match):
      """Test that the function `'spin2'` throws an exception if the
      number of electrons or the number of orbitals is less than zero.
      """
  
      with pytest.raises(ValueError, match=msg_match):
          qchem.spin.spin2(electrons, orbitals)
  
file_path: pennylane/tests/qchem/test_spin.py
imports: import pytest
  import pennylane
  from pennylane import Identity, PauliX, PauliY, PauliZ
  from pennylane import numpy
  from pennylane import qchem
  from pennylane.operation import enable_new_opmath, disable_new_opmath
label_desc: Use image node_id 3 for calling a global function with example usage: test_exception_spin2(electrons, orbitals, msg_match) without return types